I've finally decided on the pairings, after hours of contemplation. 15 playthroughs, here we go!
Hoshido: Takumi, Kaden, Kaze, Azama, Saizo or Hinata
Nohr: Xander, Niles, Leo, Odin, Silas
Revelation: Laslow, Azura, Joker, Reina, Orochi
The hype is so real right now.